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Finding the Fourth Proportional to 364,221.53, 501,481.96 and 309,666.41

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Solution

The fourth proportional to 364,221.53, 501,481.96 and 309,666.41 is: 426,367.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    364,221.53 : 501,481.96 = 309,666.41 : x
  2. Step 2: Convert to fraction form
    364,221.53/501,481.96 = 309,666.41/x
  3. Step 3: Cross multiply
    364,221.53x = 501,481.96 × 309,666.41
  4. Step 4: Simplify right side
    364,221.53x = 155,292,114,951.39
  5. Step 5: Solve for x
    x = 155,292,114,951.39/364,221.53
  6. Step 6: Final answer
    x = 426,367.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.